1 /* Linux driver for Philips webcam
2 USB and Video4Linux interface part.
3 (C) 1999-2004 Nemosoft Unv.
4 (C) 2004-2006 Luc Saillard (luc@saillard.org)
6 NOTE: this version of pwc is an unofficial (modified) release of pwc & pcwx
7 driver and thus may have bugs that are not present in the original version.
8 Please send bug reports and support requests to <luc@saillard.org>.
9 The decompression routines have been implemented by reverse-engineering the
10 Nemosoft binary pwcx module. Caveat emptor.
12 This program is free software; you can redistribute it and/or modify
13 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation; either version 2 of the License, or
15 (at your option) any later version.
17 This program is distributed in the hope that it will be useful,
18 but WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 GNU General Public License for more details.
22 You should have received a copy of the GNU General Public License
23 along with this program; if not, write to the Free Software
24 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
28 #include <linux/errno.h>
29 #include <linux/init.h>
31 #include <linux/module.h>
32 #include <linux/poll.h>
33 #include <linux/vmalloc.h>
38 static struct v4l2_queryctrl pwc_controls
[] = {
40 .id
= V4L2_CID_BRIGHTNESS
,
41 .type
= V4L2_CTRL_TYPE_INTEGER
,
49 .id
= V4L2_CID_CONTRAST
,
50 .type
= V4L2_CTRL_TYPE_INTEGER
,
58 .id
= V4L2_CID_SATURATION
,
59 .type
= V4L2_CTRL_TYPE_INTEGER
,
68 .type
= V4L2_CTRL_TYPE_INTEGER
,
76 .id
= V4L2_CID_RED_BALANCE
,
77 .type
= V4L2_CTRL_TYPE_INTEGER
,
85 .id
= V4L2_CID_BLUE_BALANCE
,
86 .type
= V4L2_CTRL_TYPE_INTEGER
,
94 .id
= V4L2_CID_AUTO_WHITE_BALANCE
,
95 .type
= V4L2_CTRL_TYPE_BOOLEAN
,
96 .name
= "Auto White Balance",
103 .id
= V4L2_CID_EXPOSURE
,
104 .type
= V4L2_CTRL_TYPE_INTEGER
,
105 .name
= "Shutter Speed (Exposure)",
109 .default_value
= 200,
112 .id
= V4L2_CID_AUTOGAIN
,
113 .type
= V4L2_CTRL_TYPE_BOOLEAN
,
114 .name
= "Auto Gain Enabled",
122 .type
= V4L2_CTRL_TYPE_INTEGER
,
123 .name
= "Gain Level",
130 .id
= V4L2_CID_PRIVATE_SAVE_USER
,
131 .type
= V4L2_CTRL_TYPE_BUTTON
,
132 .name
= "Save User Settings",
139 .id
= V4L2_CID_PRIVATE_RESTORE_USER
,
140 .type
= V4L2_CTRL_TYPE_BUTTON
,
141 .name
= "Restore User Settings",
148 .id
= V4L2_CID_PRIVATE_RESTORE_FACTORY
,
149 .type
= V4L2_CTRL_TYPE_BUTTON
,
150 .name
= "Restore Factory Settings",
157 .id
= V4L2_CID_PRIVATE_COLOUR_MODE
,
158 .type
= V4L2_CTRL_TYPE_BOOLEAN
,
159 .name
= "Colour mode",
166 .id
= V4L2_CID_PRIVATE_AUTOCONTOUR
,
167 .type
= V4L2_CTRL_TYPE_BOOLEAN
,
168 .name
= "Auto contour",
175 .id
= V4L2_CID_PRIVATE_CONTOUR
,
176 .type
= V4L2_CTRL_TYPE_INTEGER
,
184 .id
= V4L2_CID_PRIVATE_BACKLIGHT
,
185 .type
= V4L2_CTRL_TYPE_BOOLEAN
,
186 .name
= "Backlight compensation",
193 .id
= V4L2_CID_PRIVATE_FLICKERLESS
,
194 .type
= V4L2_CTRL_TYPE_BOOLEAN
,
195 .name
= "Flickerless",
202 .id
= V4L2_CID_PRIVATE_NOISE_REDUCTION
,
203 .type
= V4L2_CTRL_TYPE_INTEGER
,
204 .name
= "Noise reduction",
213 static void pwc_vidioc_fill_fmt(const struct pwc_device
*pdev
, struct v4l2_format
*f
)
215 memset(&f
->fmt
.pix
, 0, sizeof(struct v4l2_pix_format
));
216 f
->fmt
.pix
.width
= pdev
->view
.x
;
217 f
->fmt
.pix
.height
= pdev
->view
.y
;
218 f
->fmt
.pix
.field
= V4L2_FIELD_NONE
;
219 if (pdev
->pixfmt
== V4L2_PIX_FMT_YUV420
) {
220 f
->fmt
.pix
.pixelformat
= V4L2_PIX_FMT_YUV420
;
221 f
->fmt
.pix
.bytesperline
= (f
->fmt
.pix
.width
* 3)/2;
222 f
->fmt
.pix
.sizeimage
= f
->fmt
.pix
.height
* f
->fmt
.pix
.bytesperline
;
224 /* vbandlength contains 4 lines ... */
225 f
->fmt
.pix
.bytesperline
= pdev
->vbandlength
/4;
226 f
->fmt
.pix
.sizeimage
= pdev
->frame_size
+ sizeof(struct pwc_raw_frame
);
227 if (DEVICE_USE_CODEC1(pdev
->type
))
228 f
->fmt
.pix
.pixelformat
= V4L2_PIX_FMT_PWC1
;
230 f
->fmt
.pix
.pixelformat
= V4L2_PIX_FMT_PWC2
;
232 PWC_DEBUG_IOCTL("pwc_vidioc_fill_fmt() "
233 "width=%d, height=%d, bytesperline=%d, sizeimage=%d, pixelformat=%c%c%c%c\n",
236 f
->fmt
.pix
.bytesperline
,
237 f
->fmt
.pix
.sizeimage
,
238 (f
->fmt
.pix
.pixelformat
)&255,
239 (f
->fmt
.pix
.pixelformat
>>8)&255,
240 (f
->fmt
.pix
.pixelformat
>>16)&255,
241 (f
->fmt
.pix
.pixelformat
>>24)&255);
244 /* ioctl(VIDIOC_TRY_FMT) */
245 static int pwc_vidioc_try_fmt(struct pwc_device
*pdev
, struct v4l2_format
*f
)
247 if (f
->type
!= V4L2_BUF_TYPE_VIDEO_CAPTURE
) {
248 PWC_DEBUG_IOCTL("Bad video type must be V4L2_BUF_TYPE_VIDEO_CAPTURE\n");
252 switch (f
->fmt
.pix
.pixelformat
) {
253 case V4L2_PIX_FMT_YUV420
:
255 case V4L2_PIX_FMT_PWC1
:
256 if (DEVICE_USE_CODEC23(pdev
->type
)) {
257 PWC_DEBUG_IOCTL("codec1 is only supported for old pwc webcam\n");
261 case V4L2_PIX_FMT_PWC2
:
262 if (DEVICE_USE_CODEC1(pdev
->type
)) {
263 PWC_DEBUG_IOCTL("codec23 is only supported for new pwc webcam\n");
268 PWC_DEBUG_IOCTL("Unsupported pixel format\n");
273 if (f
->fmt
.pix
.width
> pdev
->view_max
.x
)
274 f
->fmt
.pix
.width
= pdev
->view_max
.x
;
275 else if (f
->fmt
.pix
.width
< pdev
->view_min
.x
)
276 f
->fmt
.pix
.width
= pdev
->view_min
.x
;
278 if (f
->fmt
.pix
.height
> pdev
->view_max
.y
)
279 f
->fmt
.pix
.height
= pdev
->view_max
.y
;
280 else if (f
->fmt
.pix
.height
< pdev
->view_min
.y
)
281 f
->fmt
.pix
.height
= pdev
->view_min
.y
;
286 /* ioctl(VIDIOC_SET_FMT) */
287 static int pwc_vidioc_set_fmt(struct pwc_device
*pdev
, struct v4l2_format
*f
)
289 int ret
, fps
, snapshot
, compression
, pixelformat
;
291 ret
= pwc_vidioc_try_fmt(pdev
, f
);
295 pixelformat
= f
->fmt
.pix
.pixelformat
;
296 compression
= pdev
->vcompression
;
299 if (f
->fmt
.pix
.priv
) {
300 compression
= (f
->fmt
.pix
.priv
& PWC_QLT_MASK
) >> PWC_QLT_SHIFT
;
301 snapshot
= !!(f
->fmt
.pix
.priv
& PWC_FPS_SNAPSHOT
);
302 fps
= (f
->fmt
.pix
.priv
& PWC_FPS_FRMASK
) >> PWC_FPS_SHIFT
;
307 if (pixelformat
!= V4L2_PIX_FMT_YUV420
&&
308 pixelformat
!= V4L2_PIX_FMT_PWC1
&&
309 pixelformat
!= V4L2_PIX_FMT_PWC2
)
315 PWC_DEBUG_IOCTL("Trying to set format to: width=%d height=%d fps=%d "
316 "compression=%d snapshot=%d format=%c%c%c%c\n",
317 f
->fmt
.pix
.width
, f
->fmt
.pix
.height
, fps
,
318 compression
, snapshot
,
320 (pixelformat
>>8)&255,
321 (pixelformat
>>16)&255,
322 (pixelformat
>>24)&255);
324 ret
= pwc_set_video_mode(pdev
,
331 PWC_DEBUG_IOCTL("pwc_set_video_mode(), return=%d\n", ret
);
336 pdev
->pixfmt
= pixelformat
;
338 pwc_vidioc_fill_fmt(pdev
, f
);
344 long pwc_video_do_ioctl(struct file
*file
, unsigned int cmd
, void *arg
)
346 struct video_device
*vdev
= video_devdata(file
);
347 struct pwc_device
*pdev
;
348 DECLARE_WAITQUEUE(wait
, current
);
352 pdev
= video_get_drvdata(vdev
);
356 #ifdef CONFIG_USB_PWC_DEBUG
357 if (PWC_DEBUG_LEVEL_IOCTL
& pwc_trace
) {
358 v4l_printk_ioctl(cmd
);
366 case VIDIOC_QUERYCAP
:
368 struct v4l2_capability
*cap
= arg
;
370 PWC_DEBUG_IOCTL("ioctl(VIDIOC_QUERYCAP) This application "\
371 "try to use the v4l2 layer\n");
372 strcpy(cap
->driver
,PWC_NAME
);
373 strlcpy(cap
->card
, vdev
->name
, sizeof(cap
->card
));
374 usb_make_path(pdev
->udev
,cap
->bus_info
,sizeof(cap
->bus_info
));
375 cap
->version
= PWC_VERSION_CODE
;
377 V4L2_CAP_VIDEO_CAPTURE
|
383 case VIDIOC_ENUMINPUT
:
385 struct v4l2_input
*i
= arg
;
387 if ( i
->index
) /* Only one INPUT is supported */
390 memset(i
, 0, sizeof(struct v4l2_input
));
391 strcpy(i
->name
, "usb");
398 *i
= 0; /* Only one INPUT is supported */
405 if ( *i
) { /* Only one INPUT is supported */
406 PWC_DEBUG_IOCTL("Only one input source is"\
407 " supported with this webcam.\n");
414 case VIDIOC_QUERYCTRL
:
416 struct v4l2_queryctrl
*c
= arg
;
419 PWC_DEBUG_IOCTL("ioctl(VIDIOC_QUERYCTRL) query id=%d\n", c
->id
);
420 for (i
=0; i
<sizeof(pwc_controls
)/sizeof(struct v4l2_queryctrl
); i
++) {
421 if (pwc_controls
[i
].id
== c
->id
) {
422 PWC_DEBUG_IOCTL("ioctl(VIDIOC_QUERYCTRL) found\n");
423 memcpy(c
,&pwc_controls
[i
],sizeof(struct v4l2_queryctrl
));
427 PWC_DEBUG_IOCTL("ioctl(VIDIOC_QUERYCTRL) not found\n");
433 struct v4l2_control
*c
= arg
;
438 case V4L2_CID_BRIGHTNESS
:
439 c
->value
= pwc_get_brightness(pdev
);
443 case V4L2_CID_CONTRAST
:
444 c
->value
= pwc_get_contrast(pdev
);
448 case V4L2_CID_SATURATION
:
449 ret
= pwc_get_saturation(pdev
, &c
->value
);
454 c
->value
= pwc_get_gamma(pdev
);
458 case V4L2_CID_RED_BALANCE
:
459 ret
= pwc_get_red_gain(pdev
, &c
->value
);
464 case V4L2_CID_BLUE_BALANCE
:
465 ret
= pwc_get_blue_gain(pdev
, &c
->value
);
470 case V4L2_CID_AUTO_WHITE_BALANCE
:
471 ret
= pwc_get_awb(pdev
);
474 c
->value
= (ret
== PWC_WB_MANUAL
)?0:1;
477 ret
= pwc_get_agc(pdev
, &c
->value
);
482 case V4L2_CID_AUTOGAIN
:
483 ret
= pwc_get_agc(pdev
, &c
->value
);
486 c
->value
= (c
->value
< 0)?1:0;
488 case V4L2_CID_EXPOSURE
:
489 ret
= pwc_get_shutter_speed(pdev
, &c
->value
);
493 case V4L2_CID_PRIVATE_COLOUR_MODE
:
494 ret
= pwc_get_colour_mode(pdev
, &c
->value
);
498 case V4L2_CID_PRIVATE_AUTOCONTOUR
:
499 ret
= pwc_get_contour(pdev
, &c
->value
);
502 c
->value
=(c
->value
== -1?1:0);
504 case V4L2_CID_PRIVATE_CONTOUR
:
505 ret
= pwc_get_contour(pdev
, &c
->value
);
510 case V4L2_CID_PRIVATE_BACKLIGHT
:
511 ret
= pwc_get_backlight(pdev
, &c
->value
);
515 case V4L2_CID_PRIVATE_FLICKERLESS
:
516 ret
= pwc_get_flicker(pdev
, &c
->value
);
519 c
->value
=(c
->value
?1:0);
521 case V4L2_CID_PRIVATE_NOISE_REDUCTION
:
522 ret
= pwc_get_dynamic_noise(pdev
, &c
->value
);
527 case V4L2_CID_PRIVATE_SAVE_USER
:
528 case V4L2_CID_PRIVATE_RESTORE_USER
:
529 case V4L2_CID_PRIVATE_RESTORE_FACTORY
:
536 struct v4l2_control
*c
= arg
;
541 case V4L2_CID_BRIGHTNESS
:
543 ret
= pwc_set_brightness(pdev
, c
->value
);
547 case V4L2_CID_CONTRAST
:
549 ret
= pwc_set_contrast(pdev
, c
->value
);
553 case V4L2_CID_SATURATION
:
554 ret
= pwc_set_saturation(pdev
, c
->value
);
560 ret
= pwc_set_gamma(pdev
, c
->value
);
564 case V4L2_CID_RED_BALANCE
:
566 ret
= pwc_set_red_gain(pdev
, c
->value
);
570 case V4L2_CID_BLUE_BALANCE
:
572 ret
= pwc_set_blue_gain(pdev
, c
->value
);
576 case V4L2_CID_AUTO_WHITE_BALANCE
:
577 c
->value
= (c
->value
== 0)?PWC_WB_MANUAL
:PWC_WB_AUTO
;
578 ret
= pwc_set_awb(pdev
, c
->value
);
582 case V4L2_CID_EXPOSURE
:
584 ret
= pwc_set_shutter_speed(pdev
, c
->value
?0:1, c
->value
);
588 case V4L2_CID_AUTOGAIN
:
589 /* autogain off means nothing without a gain */
592 ret
= pwc_set_agc(pdev
, c
->value
, 0);
598 ret
= pwc_set_agc(pdev
, 0, c
->value
);
602 case V4L2_CID_PRIVATE_SAVE_USER
:
603 if (pwc_save_user(pdev
))
606 case V4L2_CID_PRIVATE_RESTORE_USER
:
607 if (pwc_restore_user(pdev
))
610 case V4L2_CID_PRIVATE_RESTORE_FACTORY
:
611 if (pwc_restore_factory(pdev
))
614 case V4L2_CID_PRIVATE_COLOUR_MODE
:
615 ret
= pwc_set_colour_mode(pdev
, c
->value
);
619 case V4L2_CID_PRIVATE_AUTOCONTOUR
:
620 c
->value
=(c
->value
== 1)?-1:0;
621 ret
= pwc_set_contour(pdev
, c
->value
);
625 case V4L2_CID_PRIVATE_CONTOUR
:
627 ret
= pwc_set_contour(pdev
, c
->value
);
631 case V4L2_CID_PRIVATE_BACKLIGHT
:
632 ret
= pwc_set_backlight(pdev
, c
->value
);
636 case V4L2_CID_PRIVATE_FLICKERLESS
:
637 ret
= pwc_set_flicker(pdev
, c
->value
);
640 case V4L2_CID_PRIVATE_NOISE_REDUCTION
:
641 ret
= pwc_set_dynamic_noise(pdev
, c
->value
);
650 case VIDIOC_ENUM_FMT
:
652 struct v4l2_fmtdesc
*f
= arg
;
655 if (f
->type
!= V4L2_BUF_TYPE_VIDEO_CAPTURE
)
658 /* We only support two format: the raw format, and YUV */
660 memset(f
,0,sizeof(struct v4l2_fmtdesc
));
661 f
->type
= V4L2_BUF_TYPE_VIDEO_CAPTURE
;
667 f
->pixelformat
= pdev
->type
<=646?V4L2_PIX_FMT_PWC1
:V4L2_PIX_FMT_PWC2
;
668 f
->flags
= V4L2_FMT_FLAG_COMPRESSED
;
669 strlcpy(f
->description
,"Raw Philips Webcam",sizeof(f
->description
));
672 f
->pixelformat
= V4L2_PIX_FMT_YUV420
;
673 strlcpy(f
->description
,"4:2:0, planar, Y-Cb-Cr",sizeof(f
->description
));
683 struct v4l2_format
*f
= arg
;
685 PWC_DEBUG_IOCTL("ioctl(VIDIOC_G_FMT) return size %dx%d\n",pdev
->image
.x
,pdev
->image
.y
);
686 if (f
->type
!= V4L2_BUF_TYPE_VIDEO_CAPTURE
)
689 pwc_vidioc_fill_fmt(pdev
, f
);
695 return pwc_vidioc_try_fmt(pdev
, arg
);
698 return pwc_vidioc_set_fmt(pdev
, arg
);
702 v4l2_std_id
*std
= arg
;
703 *std
= V4L2_STD_UNKNOWN
;
709 v4l2_std_id
*std
= arg
;
710 if (*std
!= V4L2_STD_UNKNOWN
)
717 struct v4l2_standard
*std
= arg
;
720 std
->id
= V4L2_STD_UNKNOWN
;
721 strlcpy(std
->name
, "webcam", sizeof(std
->name
));
727 struct v4l2_requestbuffers
*rb
= arg
;
730 PWC_DEBUG_IOCTL("ioctl(VIDIOC_REQBUFS) count=%d\n",rb
->count
);
731 if (rb
->type
!= V4L2_BUF_TYPE_VIDEO_CAPTURE
)
733 if (rb
->memory
!= V4L2_MEMORY_MMAP
)
736 nbuffers
= rb
->count
;
739 else if (nbuffers
> pwc_mbufs
)
740 nbuffers
= pwc_mbufs
;
741 /* Force to use our # of buffers */
742 rb
->count
= pwc_mbufs
;
746 case VIDIOC_QUERYBUF
:
748 struct v4l2_buffer
*buf
= arg
;
751 PWC_DEBUG_IOCTL("ioctl(VIDIOC_QUERYBUF) index=%d\n",buf
->index
);
752 if (buf
->type
!= V4L2_BUF_TYPE_VIDEO_CAPTURE
) {
753 PWC_DEBUG_IOCTL("ioctl(VIDIOC_QUERYBUF) Bad type\n");
756 if (buf
->memory
!= V4L2_MEMORY_MMAP
) {
757 PWC_DEBUG_IOCTL("ioctl(VIDIOC_QUERYBUF) Bad memory type\n");
761 if (index
< 0 || index
>= pwc_mbufs
) {
762 PWC_DEBUG_IOCTL("ioctl(VIDIOC_QUERYBUF) Bad index %d\n", buf
->index
);
766 memset(buf
, 0, sizeof(struct v4l2_buffer
));
767 buf
->type
= V4L2_BUF_TYPE_VIDEO_CAPTURE
;
769 buf
->m
.offset
= index
* pdev
->len_per_image
;
770 if (pdev
->pixfmt
!= V4L2_PIX_FMT_YUV420
)
771 buf
->bytesused
= pdev
->frame_size
+ sizeof(struct pwc_raw_frame
);
773 buf
->bytesused
= pdev
->view
.size
;
774 buf
->field
= V4L2_FIELD_NONE
;
775 buf
->memory
= V4L2_MEMORY_MMAP
;
776 //buf->flags = V4L2_BUF_FLAG_MAPPED;
777 buf
->length
= pdev
->len_per_image
;
779 PWC_DEBUG_READ("VIDIOC_QUERYBUF: index=%d\n",buf
->index
);
780 PWC_DEBUG_READ("VIDIOC_QUERYBUF: m.offset=%d\n",buf
->m
.offset
);
781 PWC_DEBUG_READ("VIDIOC_QUERYBUF: bytesused=%d\n",buf
->bytesused
);
788 struct v4l2_buffer
*buf
= arg
;
790 PWC_DEBUG_IOCTL("ioctl(VIDIOC_QBUF) index=%d\n",buf
->index
);
791 if (buf
->type
!= V4L2_BUF_TYPE_VIDEO_CAPTURE
)
793 if (buf
->memory
!= V4L2_MEMORY_MMAP
)
795 if (buf
->index
>= pwc_mbufs
)
798 buf
->flags
|= V4L2_BUF_FLAG_QUEUED
;
799 buf
->flags
&= ~V4L2_BUF_FLAG_DONE
;
806 struct v4l2_buffer
*buf
= arg
;
809 PWC_DEBUG_IOCTL("ioctl(VIDIOC_DQBUF)\n");
811 if (buf
->type
!= V4L2_BUF_TYPE_VIDEO_CAPTURE
)
814 /* Add ourselves to the frame wait-queue.
816 FIXME: needs auditing for safety.
817 QUESTION: In what respect? I think that using the
820 add_wait_queue(&pdev
->frameq
, &wait
);
821 while (pdev
->full_frames
== NULL
) {
822 if (pdev
->error_status
) {
823 remove_wait_queue(&pdev
->frameq
, &wait
);
824 set_current_state(TASK_RUNNING
);
825 return -pdev
->error_status
;
828 if (signal_pending(current
)) {
829 remove_wait_queue(&pdev
->frameq
, &wait
);
830 set_current_state(TASK_RUNNING
);
834 set_current_state(TASK_INTERRUPTIBLE
);
836 remove_wait_queue(&pdev
->frameq
, &wait
);
837 set_current_state(TASK_RUNNING
);
839 PWC_DEBUG_IOCTL("VIDIOC_DQBUF: frame ready.\n");
840 /* Decompress data in pdev->images[pdev->fill_image] */
841 ret
= pwc_handle_frame(pdev
);
844 PWC_DEBUG_IOCTL("VIDIOC_DQBUF: after pwc_handle_frame\n");
846 buf
->index
= pdev
->fill_image
;
847 if (pdev
->pixfmt
!= V4L2_PIX_FMT_YUV420
)
848 buf
->bytesused
= pdev
->frame_size
+ sizeof(struct pwc_raw_frame
);
850 buf
->bytesused
= pdev
->view
.size
;
851 buf
->flags
= V4L2_BUF_FLAG_MAPPED
;
852 buf
->field
= V4L2_FIELD_NONE
;
853 do_gettimeofday(&buf
->timestamp
);
855 buf
->memory
= V4L2_MEMORY_MMAP
;
856 buf
->m
.offset
= pdev
->fill_image
* pdev
->len_per_image
;
857 buf
->length
= pdev
->len_per_image
;
858 pwc_next_image(pdev
);
860 PWC_DEBUG_IOCTL("VIDIOC_DQBUF: buf->index=%d\n",buf
->index
);
861 PWC_DEBUG_IOCTL("VIDIOC_DQBUF: buf->length=%d\n",buf
->length
);
862 PWC_DEBUG_IOCTL("VIDIOC_DQBUF: m.offset=%d\n",buf
->m
.offset
);
863 PWC_DEBUG_IOCTL("VIDIOC_DQBUF: bytesused=%d\n",buf
->bytesused
);
864 PWC_DEBUG_IOCTL("VIDIOC_DQBUF: leaving\n");
869 case VIDIOC_STREAMON
:
871 return pwc_isoc_init(pdev
);
874 case VIDIOC_STREAMOFF
:
876 pwc_isoc_cleanup(pdev
);
880 case VIDIOC_ENUM_FRAMESIZES
:
882 struct v4l2_frmsizeenum
*fsize
= arg
;
883 unsigned int i
= 0, index
= fsize
->index
;
885 if (fsize
->pixel_format
== V4L2_PIX_FMT_YUV420
) {
886 for (i
= 0; i
< PSZ_MAX
; i
++) {
887 if (pdev
->image_mask
& (1UL << i
)) {
889 fsize
->type
= V4L2_FRMSIZE_TYPE_DISCRETE
;
890 fsize
->discrete
.width
= pwc_image_sizes
[i
].x
;
891 fsize
->discrete
.height
= pwc_image_sizes
[i
].y
;
896 } else if (fsize
->index
== 0 &&
897 ((fsize
->pixel_format
== V4L2_PIX_FMT_PWC1
&& DEVICE_USE_CODEC1(pdev
->type
)) ||
898 (fsize
->pixel_format
== V4L2_PIX_FMT_PWC2
&& DEVICE_USE_CODEC23(pdev
->type
)))) {
900 fsize
->type
= V4L2_FRMSIZE_TYPE_DISCRETE
;
901 fsize
->discrete
.width
= pdev
->abs_max
.x
;
902 fsize
->discrete
.height
= pdev
->abs_max
.y
;
908 case VIDIOC_ENUM_FRAMEINTERVALS
:
910 struct v4l2_frmivalenum
*fival
= arg
;
914 for (i
= 0; i
< PSZ_MAX
; i
++) {
915 if (pwc_image_sizes
[i
].x
== fival
->width
&&
916 pwc_image_sizes
[i
].y
== fival
->height
) {
922 /* TODO: Support raw format */
923 if (size
< 0 || fival
->pixel_format
!= V4L2_PIX_FMT_YUV420
) {
927 i
= pwc_get_fps(pdev
, fival
->index
, size
);
931 fival
->type
= V4L2_FRMIVAL_TYPE_DISCRETE
;
932 fival
->discrete
.numerator
= 1;
933 fival
->discrete
.denominator
= i
;
939 return pwc_ioctl(pdev
, cmd
, arg
);
944 /* vim: set cino= formatoptions=croql cindent shiftwidth=8 tabstop=8: */